Improvement in paper-feeding machines



s. SCHOLFIELD & C. E. BAKER.

Paper Feeding-Machines.

No. 135,597: Patented Feb. 4, 1873';

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ITNEESE'S. INVENTUR? AM. PHOTO-LITHOGRAPIIIC an M)! (ossonnsmacgss)SOGRATES SUHOLFIELD, OF PROVIDENCE, BHODE 1SLAND,.AND CHARLES E. BAKER,OF MONT CLAIR, NEW JERSEY.

IMPROVEMENT IN PAPER-FEEDING MACHINES.

Specification forming part of Letters Patent No. 135,597, dated February4, 1873.

To all whom it may concern:

Be it known that we, SOCR-ATES SCHOL- FIELD, of Providence, in thecounty of Providence and State of Rhode Island, and CHARLES E. BAKER, ofMont Clair, in the county of Essex and State of New Jersey, haveinvented an Improvement in Paper-Feeding Machines,

of which the following is a specification:

The nature of our invention consists in pressing firmly upon the top ofa pile of paper with an inclined holding pin or point, and at the sametime producing a movement of the top sheet by means of friction-pads,suction-tubes, or by nippers or other suitable devices, as heretoforeused for moving sheets of paper singly from one place to another,causing the inclined pressing pin or point to tear through and raise themoving top sheet, so as to rest with its full holding power upon thesheet below, the friction between the two sheets being thereafterinsufficient tocause the removal of the lower sheet from under theinclined pressing-point; it also consists in a suitable combination ofdevices for operating the inclined pins and friction-pads in timelyrelation to each other, and to raise the sheet of paper from the pile inorder to properly present it to the carrying-gripers of a printing-pressor othermachine.

Figure l is a plan View of our invention. Fig. 2 is a sectionalelevation taken in the line mm. Fig. 5 is a view of one of the inclinedholdingpins as preferably constructed. Fig. 4. is a cross-section of thesame as taken in the line y y. Fig. 3 is a partial view of a sheet,showing the resulting form of the puncture made by the pin whenconstructed as shownin Fig. 5.

In the drawing, A is the pile of paper, over which is placed thecross-bar B, which is made capable of an up-and-down movement in theslides O G. The inclined pinsD D are attached to the cross-bar B, andmay be made adjustable thereon so as to accommodate different sizes ofpaper, and any suitable number of such pins may be employed. Thefriction-pad E is arranged upon a slide, F, so as to rise and fall withthe cross-bar B and pins D D. To the slide G, which extends upon bothsides of the pile of paper, are attached the upright standards H H H H,which engage with the ends of the cross-bar I attached to the pad E. Thecross-barB is connected to the slide G by means of the two cords J J,passing through the fixed rings K K. The slide Gr having been drawn backto the position shown at G by the dotted lines, and apile of paper, A,having been placed upon the bed L under the cross-bar B, the subsequentbackward movement of the slide G to the position shown in Fig. 1 willallow the cross-bar B, with the attached pad E and inclined pins D D, todrop to the top of the pile of paper, so as torest thereon with apressure which may be properly adjustedby means of suitable weights.After the pad E and the pins D D reach the position upon the top of. thepile of paper, as described, the subsequent movement of the slide G,through the remaining portion of its stroke y, will, by means of I thestandards H H, which now strike the ends of the cross-bar I, cause thepad E to move with the slide G, thus drawing back the sheet of paper itonto the pins D D, and elevating the edge, as shown in Fig. 2. Now, upondrawing the slide G back to its previous position the cross-bar B willbe raised by means of the cords J J, thus lifting the front edge of thesheet on the pins D D, as shown by the dotted lines. From this positionthe sheet is to be taken by suitable carrying-gripers arranged to removethe sheet to the proper point, from which it is to be taken by thegripers of the revolving cylinder. The backward movement of the slide G,as above, will also draw back the pad E in preparation for a repetitionof its stroke upon the paper during the subsequent reversed movement ofthe slide, as before, by means of the standards H H, which strike theends of the crossbar I, as shown by the dotted lines.

A preferable construction of the holdingpoint of the pin D is shown inFigs. 4 and 5, Fig. 4. being a cross-section taken in the line 3 y ofFig. 5; but various other forms of construction may be advantageouslyused.

Fig. 3 represents a portion of a sheet of paper, which has been removedby means of the pin D of Fig. 5, showing the resulting form of thepuncture a.

In the practical application of our invention, we propose to remove thesheet of paper from the pin D, either by drawing the paper entirely overthe pin, as set forth by us in a prior application now on file in thePatent Ofice, or

by retracting the pin from the orifice made in the sheet, or by drawingthe paper from the pin by means of gripers, as proposed in the presentapplicationthis latter method appearing to us as most suitable forapplication to the ordinary rotary printing-presses, where exactness ofregister is not imperatively demanded, and but ,little room can bespared for such apparatus-the former methods being applicable to othermachines where sufficient room can be easily obtained and a correctsystem of registering is required. 7

The holding-pin D, owing to its non-penetration of the sheet of paperwhen resting under the necessary preliminary pressure, and at the sametime serving to tear out a slight chip, as soon as the paper receivesits proper motion through the action of the friction-pad 'E, or otherequivalent moving device, is in cluded in the claim of anotherapplication now on file in the Patent Office therefore we make no claimin this specification to a holding instrument with a non-penetratingpoint or edge, which serves to tear a slight chip from a moving sheet ofpaper; but

What we claim as our invention, is

1. An inclined holding-pin, D, arranged to press upon the top of a pileof paper, and upon the inclined point of which the top sheet is drawn bymeans of friction-pads or otherwise.

2. The combination of the inclined pins D D, cross-bar B, pad E, andslide G, operating to first draw the sheet upon the pins, and then toraise the edge of the sheet, substantially as described.

SOORATES SGHOLFIELD. CHARLES E. BAKER. Witnesses:

WILLIAM E. MEAD, H. S. CHANDLER.

